Bass preamplifier with dual inputs and 3 band EQ channels, equipped with high quality components that are used solely for audio equipment to achieve ultra low noise and low distortion rate. The internal circuitry is powered by a 24-volt supply, allowing the expressive dynamic range of bass guitar to come through with maximum impact and clarity. EQ controls employ precision potentiometers with a specially designed control curve for maximum subjective linearity. 24V power supply included.